This is the awesome filmic picture of Saturn taken by the Cassini robotic spacecraft, part of the Cassini-Huygens mission sent by NASA and ESA to study Saturn. You must click the image to see it at full size to really appreciate it.
The original is from the great Astronomy Picture of the Day site, well worth a visit.
Soft hues, partially lit orbs, a thin trace of the ring, and slight shadows highlight this understated view of the majestic surroundings of the giant planet Saturn. Looking nearly back toward the Sun, the robot Cassini spacecraft now orbiting Saturn captured crescent phases of Saturn and its moon Rhea in color a few years ago. As striking as the above image is, it is but a single frame from a recently released 60-frame silent movie where Rhea can be seen gliding in front of its parent world. Since Cassini was nearly in the plane of Saturn’s rings, the normally impressive rings are visible here only as a thin line across the image center. Although Cassini has now concluded its primary mission, its past successes and opportunistic location have prompted NASA to start a two-year Equinox Mission, further exploring not only Saturn’s enigmatic moons Titan and Enceladus, but Saturn herself as her grand rings tilt right at the Sun in August 2009.
We converted it into wallpaper, widescreen-1900×1200 and standard-1600×1200, which should fit most screens… Saturn Wallpaper.zip